Pith Number

pith:GZFLP5XY

pith:2010:GZFLP5XYNERQR2L56YI4CX5B4B

not attested not anchored not stored refs pending

Silver block intersection graphs of Steiner 2-designs

A. Ahadi, E. S. Mahmoodian, M. Mortezaeefar, Nazli Besharati

arxiv:1005.4492 v3 · 2010-05-25 · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GZFLP5XYNERQR2L56YI4CX5B4B}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T03:59:12.429943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

364ab7f6f8692308e97df611c15fa1e05604aa85eb5f2dce6c960e7db8d25b06

Aliases

arxiv: 1005.4492 · arxiv_version: 1005.4492v3 · doi: 10.48550/arxiv.1005.4492 · pith_short_12: GZFLP5XYNERQ · pith_short_16: GZFLP5XYNERQR2L5 · pith_short_8: GZFLP5XY

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/GZFLP5XYNERQR2L56YI4CX5B4B \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 364ab7f6f8692308e97df611c15fa1e05604aa85eb5f2dce6c960e7db8d25b06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ebb3c8988bf7d0130eb86e52b9f08fa5e562f5056aaa2c612de75c115b4bac9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2010-05-25T07:23:11Z",
    "title_canon_sha256": "947e6bcaa79b4ef464e3be9bb32be3a8bd851665b27cc3f9ee0735c59338c8cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.4492",
    "kind": "arxiv",
    "version": 3
  }
}